added github actions package config for dependabot (#57)

Author: mfaisalkhatri

.github/dependabot.yml

@@ -13,3 +13,14 @@ updates:
     groups:
       dependencies:
         dependency-type: 'production'
+
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    target-branch: main
+    open-pull-requests-limit: 20
+    schedule:
+      interval: "weekly"
+      timezone: "Asia/Calcutta"
+    groups:
+      dependencies:
+        dependency-type: 'production'